Very little is known about HUNK's past, not even her actual name, and the only thing known from her history is that she received training in 1996 at the Rockfort Island Military Training Center. Lady HUNK became well known for having performed the most successful missions and was often the only agent to return. It was this that gave her the nickname, "Grim Reaper Lady HUNK".

Lady HUNK is completely cold and determined, focusing completely on accomplishing her mission, despite the consequences.